Product Overview

The Bently Nevada 24701-28-05-00-110-00-02 is a specialized proximity probe housing assembly. This unit features a 3300 XL 8mm probe with multiple global approvals for hazardous areas. You get a no-fittings design for maximum installation flexibility. It measures shaft vibration and position on critical rotating machinery. The assembly includes a dome cover, probe sleeve, and reverse mount probe without any conduit fittings.

Technical Specifications

Probe and Cable Configuration

• Probe Option: 3300 XL 8mm probe with multiple approval option.

• Probe Cable Length: 0.5 metres (20 inches).

• Standoff Adapter: Not included (option -00).

• Probe Penetration (C Dimension): 11 inches (279 mm).

• Maximum (C) + (D) Visible Probe: Not visible (P/N and S/N hidden).

• Maximum (C) + (D) Total Dimension: 13.5 inches (34.3 mm).

Fittings and Mounting

• Fittings Option (00): Without fittings (no plugs, no reducer, no cable seal grip).

• Mounting Thread Option: 3/4-14 NPT required when standoff adapter is not ordered.

• No Fittings Included: You must supply your own conduit fittings.

• Threaded Ports: Present on housing but left open for custom fittings.

Materials and Construction

• Body Material: 303 stainless steel.

• Sleeve Material: 304 stainless steel.

• Dome Cover: Screws directly into the housing body.

• Threaded Ports: For user-supplied conduit connections.

• Included Components: O-rings, thread seal, reverse mount proximity probe.

• No Standoff Adapter: The probe mounts directly to the target surface.

• Approved Probe: Suitable for installations requiring agency certifications.

Physical Characteristics

• Typical Weight: 1.8 kg (4.1 lb) without fittings.

• Probe Cable Length: 0.5 metres (20 inches) total.

• Probe Type: Reverse mount configuration with approvals.

• Housing Design: Screw-type dome cover for easy access.

• Penetration Depth: 11 inches for deep mounting scenarios.

Installation Guide

Follow these steps to install the Bently Nevada 24701-28-05-00-110-00-02 correctly. First, supply your own conduit fittings compatible with 3/4-14 NPT threads. Second, mount the housing using the 3/4-14 NPT thread option directly to your machine. Third, install your chosen fittings into the threaded ports on the housing body. Fourth, run the probe cable through your fittings to the monitoring system. Fifth, verify the probe penetration reaches exactly 11 inches to the target. Sixth, screw the dome cover onto the housing body after checking the probe gap. Finally, seal all connections according to your hazardous area requirements.

Package Contents

• 1 x Dome cover that screws into the housing body.

• 1 x Housing body with threaded conduit ports (303 stainless steel).

• 1 x Probe sleeve (304 stainless steel) with 11 inch penetration.

• 1 x Reverse mount proximity probe (3300 XL 8mm probe with approvals).

• 1 x Set of O-rings for sealing.

• 1 x Thread seal compound.

• 0 x Conduit fittings (none included with option -00).

• 0 x Standoff adapter (not included with option -00).

• 0 x NPT plugs or reducers (none included).

Frequently Asked Questions (FAQ)

Q1: Why would I choose the Bently Nevada 24701-28-05-00-110-00-02 without fittings?
A: The -00 fitting option gives you complete freedom to select your own conduit fittings. This works best when you have site-specific requirements or existing fittings in stock. You avoid paying for parts you do not need.

Q2: What approvals does the probe carry in this assembly?
A: The probe option 28 means this is a 3300 XL 8mm probe with multiple global approvals. These typically include ATEX, CSA, and IECEx for hazardous area use. Check the probe label for your specific certification details.

Q3: Can I use this housing in a hazardous location without fittings?
A: No, you must install approved conduit fittings to maintain the hazardous area rating. The housing alone provides mechanical protection but not flame-proof sealing. Always use certified fittings for explosive environments.

Q4: What is the probe penetration depth for the Bently Nevada 24701-28-05-00-110-00-02?
A: The probe penetration is exactly 11 inches (110 suffix code). This deep penetration suits machines with thick casings or remote mounting surfaces. The total (C)+(D) dimension still reaches a maximum of 13.5 inches.

Q5: How do I access the reverse mount probe for maintenance?
A: Simply unscrew the dome cover from the housing body. This gives you full access to the 3300 XL 8mm probe without removing the entire housing. You can then adjust the gap or replace the probe as needed.